Is Christmas A Pagan Holiday

Q: I've heard that Christmas is a pagan holiday, and that we Christians should not celebrate it because it is based off some pagan celebration of the birth of the .
Many popular customs associated with Christmas developed independently of the commemoration of Jesus' birth, with certain elements having origins in pre-Christian festivals that were celebrated around the winter solstice by pagan populations who were later converted to Christianity.
It is widely known that Christmas started as a pagan festival. Many think it has now turned into a Christian festival. However, the pagan things such as Santa .